Modify the NIC name in CENTOS7/RHEL7

1. disabling predictable naming rules

# Vim/etc/default/grub

Add two sentences: net.ifnames=0 biosdevname=0

Grub_timeout=5

Grub_default=saved

Grub_disable_submenu=true

grub_terminal_output= "Console"

grub_cmdline_linux= "Rd.lvm.lv=centos/root rd.lvm.lv=centos/swap net.ifnames=0 biosdevname=0 rhgb quiet"

Grub_disable_recovery= "true"

# grub2-mkconfig-o/boot/grub2/grub.cfg

Generating GRUB configuration file ...

Found Linux Image:/boot/vmlinuz-3.10.0-229.el7.x86_64

Found initrd Image:/boot/initramfs-3.10.0-229.el7.x86_64.img

Found Linux Image:/boot/vmlinuz-0-rescue-a8ecfd39a4014521ae54ccef4ada1c67

Found initrd Image:/boot/initramfs-0-rescue-a8ecfd39a4014521ae54ccef4ada1c67.img

Done

2. Modify the NIC configuration file

# cd/etc/sysconfig/network-scripts/

# MV Ifcfg-enoxxxxxx Ifcfg-eth0

3. Modify the name of the device

# Vim/etc/udev/rules.d/70-persistent-ipoib.rules

subsystem== "NET", action== "Add", drivers== "? *", attr{address}== "00:0c:29:e0:17:54", attr{type}== "1", kernel== "eth*", name= "eth0"

4, restart the system can

Mv/etc/yum.repos.d/centos-base.repo/etc/yum.repos.d/centos-base.repo.backup

Wget-o/etc/yum.repos.d/centos-base.repo Http://mirrors.aliyun.com/repo/Centos-7.repo

Yum Clean All

Yum Makecache

Systemctl Action Service name.

Yum-y Install Net-tools

CentOS 7.0 defaults to using firewall as the firewall, where the iptables firewall is changed.

Firewall

Systemctl Start firewalld.service# Startup firewall

Systemctl Stop firewalld.service# stops firewall

Systemctl Disable firewalld.service# disable firewall boot boot

Modify the NIC name in CENTOS7/RHEL7